What is the name of the blue artificial intelligence who guides Master Chief in Halo?
Which chess world champion lost a 1997 match to the IBM computer Deep Blue?
In the card game Uno, how many cards does each player receive at the start of a standard game?
What card game has players shout a Spanish word meaning "one" when they are down to their last card?
Who invented the Rubik's Cube, originally called the "Magic Cube," in 1974?